Method for detecting surface defects of mechanical parts based on image texture and fractal dimension
A technology of fractal dimension and mechanical parts, applied in image analysis, image data processing, measuring devices, etc., can solve problems that do not conform to the actual observation of the human eye, and achieve simple and easy actual observation of the human eye and meet the actual observation of the human eye Effect
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[0027] A method for detecting surface defects of mechanical parts based on image texture and fractal dimension includes the following steps:
[0028] Step (1). Pre-processing the mechanical parts to be tested. The specific method of pre-processing is to first coat the surface of the part to be tested with black ink, and then wipe the surface of the part with a dry cloth after the ink fills the pores of the part to be tested;
[0029] Step (2), place the pre-processed mechanical parts on the conveyor belt, and use the CCD image acquisition system to image the surface of the part to be measured to obtain the texture image of the surface of the part;
[0030] Step (3): Calculate the fractal dimension and voidness of the texture image;
[0031] The method of calculating the fractal dimension of the texture image is:
[0032] The surface image of the mechanical part is expanded by several zero rows or several zero columns at the corresponding boundary to make the width and height of the imag...
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